187022847047 has 4 divisors (see below), whose sum is σ = 187055215320. Its totient is φ = 186990478776.

The previous prime is 187022847019. The next prime is 187022847101. The reversal of 187022847047 is 740748220781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740748220781 = 149 ⋅4971464569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187022847047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 187022846986 and 187022847004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187022847007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16175468 + ... + 16187025.

It is an arithmetic number, because the mean of its divisors is an integer number (46763803830).

Almost surely, 2^187022847047 is an apocalyptic number.

187022847047 is a deficient number, since it is larger than the sum of its proper divisors (32368273).

187022847047 is an equidigital number, since it uses as much as digits as its factorization.

187022847047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32368272.

The product of its (nonzero) digits is 1404928, while the sum is 50.

The spelling of 187022847047 in words is "one hundred eighty-seven billion, twenty-two million, eight hundred forty-seven thousand, forty-seven".